So .. you are duo bot in a ranked game.

https://33.media.tumblr.com/2fd8d618ac0aa0b34b6b6cfc3c4cd4c2/tumblr_nd8o50AfqU1s8c9jeo1_500.gif

and you are last pick in champ select and other people main those roles.

http://forums.na.leagueoflegends.com/board/showthread.php?t=3449932&page=1#post37793026